Ontario Air Brake Z Test Practice Questions - Ontario Air Brake (Z Endorsement) Knowledge Test Exam

A straight truck builds air from 85 psi to 100 psi in 2 minutes 20 seconds at 700 rpm. What is the result?

Pass, because rpm is within 600 to 900 Pass, because only tractor-trailers have a limit Fail only if cut-out is above 150 psi Fail, because the build-up must take two minutes or less

Correct Answer:

Fail, because the build-up must take two minutes or less

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